Ibis - international journal of avian science,
The role of the North American Breeding Bird Survey in conservation http://www.bioone.org/doi/abs/10.1650/CONDOR-17-62.1
The role of the North American Breeding Bird Survey in conservation http://www.bioone.org/doi/abs/10.1650/CONDOR-17-62.1
In 1966, a U.S. Fish and Wildlife Service biologist named Chan Robbins launched an international program designed to measure…